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NGC 2455 — Open Cluster in Puppis

Open Cluster Good (43/100)
Magnitude 10.0m OpenCluster Puppis (Pup) Visible
Star Map
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1Properties

Magnitude 10.0
Angular Size 4.5′
Cl, cL, pRi, lC, st 12

Position & Identifiers

RA 07h 48m 60.0s
Dec -21° 18' 00.0"
Constellation Puppis (Pup)
Catalog NGC 2455

2How easy to spot?

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Telescope Bortle 3 Bortle 4 Bortle 5
80mm refr. Medium+ Medium Medium
150mm Newt. Easy Easy Easy
C8 203mm Easy Easy Easy
Easy Medium Hard Very hard Impossible

Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs

Easy on Seestar S50

3Visibility

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Best season Dec – Feb (peak: Jan)

4 Eyepiece View

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125x TFOV: 0.4° Lim. mag: 13.6
N E

NGC 2455 · 4.5′ diameter

5 Best Magnification

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6 Classification Decoder

Nearby in the Sky

Other targets within a few degrees — pan your scope a little and keep exploring.

Visibility scores assume a 150 mm Newton at Bortle 4.

M93
NGC 2447
Easy
Rich open cluster
Open Cluster mag 6.2 2.8° Puppis
NGC 2432
Easy
Open cluster
Open Cluster mag 10.0 2.9° Puppis
NGC 2421
Easy
Open cluster
Open Cluster mag 8.3 3.1° Puppis
NGC 2482
Easy
Open cluster
Open Cluster mag 7.3 3.3° Puppis
NGC 2438
Hard+
Planetary nebula — try an OIII filter
Planetary Nebula mag 10.0 6.8° Puppis
29 CMa
Hard+
Eclipsing binary, period 4.4d
Variable Star mag 4.98 7.7° Canis Major
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